§ 34. Mr. de Freitasasked the Minister of Agriculture, Fisheries and Food what encouragement he is giving to the use of the systemic drug Etrolene or the systemic wash Co-Ral in preventing warble fly infestation in cattle; and whether he will make a statement.
§ Mr. GodberThese systemic insecticides have given encouraging results in field trials and my right hon. Friend is most interested in their development. Although these compounds may safely be used under the prescribed conditions, they are toxic and we must await further experience of their widespread use.